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  • Primerjava diagnostičnih postopkov za ugotavljanje pretirane vagusne vzdraženosti pri otrocih z afektnimi napadi
    Perković-Benedik, Mirjana
    The breath-holding spells are a common cause for a loss of consciousness during the early childhood. The episodes of breath-holding spells are involuntary and reflexive and usually occur after a ... provocation that causes anger, frustration or reaction to pain. There appear to be two clinical forms:the pallid type and the cyanotic type. Both differ also according to theunderlying pathophysiologic mechanisms. At the beginning of the spell a child usually cries or wants to cry, suddenly becomes silent and holds breath in expiration. The color of skin changes: in pallid type becomes pale and in cyanotic type cyanosis occurs early in the episode. After that the child may lose consciousness. Observation of children during the pallid breath-holding spells revealed marked bradycardia or asystole. An excessive vagal tone has been implicated as a cause of pallid breath-holding spells. The pathophysiology of the cyanotic breath-holding spells is complex and not completely understood. Results of some investigations suggest that there is also an autonomic dysregulation in children with cyanotic breath-holding spells. Ocular compression that triggers the oculocardiac reflex is used to evaluate vagal tone in children with breath-holding spells. In our laboratory the treshold value for vagal overactivity has not been established yet. In that purpose we performed a retrospective study. We reviewed 190 oculocardiac reflexes done during 5-year period. We found out that asystole of 6 seconds duration or more indicate a vagal overactivity in children younger than seven years old in our laboratory (95% of children with pallid breathholding spells have an asystole of 6 seconds duration or more). In a prospective part of the study we compared responses of the oculocardiac reflex and the cold face test.(Abstract truncated at 2000 characters).
    Vrsta gradiva - magistrsko delo
    Založništvo in izdelava - Ljubljana : [M. Perković-Benedik], 2003
    Jezik - slovenski
    COBISS.SI-ID - 17306329

Knjižnica/institucija Kraj Akronim Za izposojo Druga zaloga
MF, Centralna medicinska knjižnica, Ljubljana Ljubljana CMK na dom 1 izv.
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